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Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but Ive not seen them get over 34... usually run 29-31.

Is there anyway we could the miner log to see what the problem caused it restarted. Mine restarted at -2 voltage in every 30 mins average

If you could screenshot the miner Log or copy and paste it to this thread, everyone can have a look at it, and perhaps see your problem

Please take a look and help me out. Thanks all
https://drive.google.com/file/d/1A60Rp9_DdZcUy5slzB7qYso5dEKBunAE/view?usp=sharing
https://drive.google.com/open?id=1hvpYMmcziMPUOIgMC23PK3m7FqZi7CWG

Having compared yours with mine, the only big difference I noticed is that your's ECHU is [16 0 0 0] where mine is [0 0 0 0]. Tried searching what that means, but couldn't find anything, maybe some other member can clarify. Also have you tried running it with a voltage offset of 0? Just curious what it would give then.

I ran it at -2. If i set it at 0, it will restart after 5-10 mins

Look at the System Log tab, that might provide some clues. See what's happening around the time the hashrate is dropping to zero. Maybe there is something happening with dhcpd, etc.

The 741 has a watchdog running that will reboot the system ~5 minutes if it hasn't sent work or if the ASIC stops responding or if the cgminer API isn't accessible to the local host. If the machine reboots on voltage of 0, it's likely that the ASIC is dropping a board (or a row of chips) prompting the watchdog to reboot. Swap your PSU and see if that helps.

That said, have you made any changes to the API addresses in the cgminer config tab? That one drove me crazy for a day... 127.0.0.1 must have access to the API, default is "W:", but I'm not sure if it needs write access.

Good luck!

I returned the 2x750W Corsair for 2x750W G2 EVGA. it was stable for 12 hours at -2. the longest running since i got the miner. The moment i switched to 0. it ran for an hours, then restart. Im trying -1 now. will see what happen

I had one of mine running with 2x750W Corsair power supplies, and they weren't giving enough power on the 12V rail,which led to them running at less than 7TH and rebooting every few hours. However, after I changed it to 850W PSU's they are now happily running at about 7.2TH. Could you perhaps check what is the wattage on the 12V rail?
Now not sure if you have the same Corsair Power Suplies, but that could be your problem, could you perhaps check what is

edrich

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